diff --git a/app/Ninja/Repositories/ActivityRepository.php b/app/Ninja/Repositories/ActivityRepository.php
index 135e0da0acf5..7c94cf726597 100644
--- a/app/Ninja/Repositories/ActivityRepository.php
+++ b/app/Ninja/Repositories/ActivityRepository.php
@@ -87,7 +87,6 @@ class ActivityRepository
                         'activities.created_at',
                         'activities.contact_id',
                         'activities.activity_type_id',
-                        'activities.is_system',
                         'activities.balance',
                         'activities.adjustment',
                         'activities.notes',
diff --git a/resources/lang/en/texts.php b/resources/lang/en/texts.php
index 181db4c2cef9..8ea37f043f1e 100644
--- a/resources/lang/en/texts.php
+++ b/resources/lang/en/texts.php
@@ -2266,6 +2266,7 @@ $LANG = array(
     'google_analytics' => 'Google Analytics',
     'analytics_key' => 'Analytics Key',
     'analytics_key_help' => 'Track payments using :link',
+    'start_date_required' => 'The start date is required',
 
 );
 
diff --git a/resources/views/invoices/edit.blade.php b/resources/views/invoices/edit.blade.php
index 31090f491a23..23f8ac202ad7 100644
--- a/resources/views/invoices/edit.blade.php
+++ b/resources/views/invoices/edit.blade.php
@@ -1345,6 +1345,10 @@
 
 	function onMarkSentClick() {
 		if (model.invoice().is_recurring()) {
+			if (! model.invoice().start_date()) {
+				swal("{{ trans('texts.start_date_required') }}");
+				return false;
+			}
 			if (!isSaveValid()) {
 	            model.showClientForm();
 	            return false;